# -*- coding: UTF-8 -*-
import requests
import json 
import re
import time
import sys
from lxml import etree

#请求url
def get_one_page(url):
    headers={'User-Agent':'Mozilla/5.0(Macintosh;Intel Mac OS X 10_13_3)AppleWebKit/537.36(KHTML,like Gecko) Chrome/65.0.3325.162 Safari/537.36'}
    response=requests.get(url,headers=headers)
    if response.status_code == 200:
        return response.text
    return None

def main(offset):
    url = 'http://maoyan.com/board/4?offset='+str(offset)
    html = get_one_page(url)
    for item in parse_one_page(html):
        write_to_file(item)

#解析网络数据
def parse_one_page(html):
    pattern=re.compile('<dd>.*?board-index.*?>(.*?)</i>.*?data-src="(.*?)".*?name.*?a.*?>(.*?)</a>.*?star.*?>(.*?)</p>.*?releasetime.*?>(.*?)</p>.*?integer.*?>(.*?)</i>.*?fraction.*?>(.*?)</i>.*?</dd>',re.S)
    items=re.findall(pattern,html)
    for item in items:
        yield{
                'index':item[0],
                'image':item[1],
                'titleSource':item[2].strip(),
                'actor':item[3].strip()[3:] if len(item[3]) > 3 else '',
                'time' :item[4].strip()[5:] if len(item[4]) > 5 else '',
                'score':item[5].strip()+item[6].strip()
                }
#写入文件
def write_to_file(content):
    with open('result.txt','a',encoding='utf-8') as f:
        f.write(json.dumps(content,ensure_ascii=False)+'\n')

if __name__ == '__main__':
    for i in range(10):
        main(offset=i*10)
        time.sleep(1)

